#ifndef __COMM_HPP__
#define __COMM_HPP__

#include<iostream>
#include<sys/ipc.h>
#include<sys/shm.h>
#include<sys/types.h>
#include<cstring>
#include<string.h>
#include<cstdlib>
#include"Log.hpp"

using namespace std;

#define SIZE 4096
const string pathname = "/home/lyy";
const int proj_id = 0x6666;


Log log;
key_t GetKey()
{
    key_t k = ftok(pathname.c_str(), proj_id);
    if(k < 0)
    {
        log(Fatal, "ftok error: %s", strerror(errno));
        exit(1);
    }
    log(Info, "ftok success, key is :%d", k);
    return k;
}

int GetShareMemHelp(int flag)
{
    key_t k = GetKey();
    int shmid = shmget(k, SIZE, flag);
    if(shmid < 0)
    {
        log(Fatal, "creat share memory error: %s", strerror(errno));
        exit(2);
    }
    log(Info, "creat share memory success, shmid : %d", shmid);

    return shmid;
}

int CreatShm()
{
    return GetShareMemHelp(IPC_CREAT | IPC_EXCL | 0666);
}


int GetShm()
{
    return GetShareMemHelp(IPC_CREAT);
}

#endif


